Echo & SONAR | Class 10 Physics Guaranteed Question | Applications of Sound скачать в хорошем качестве

Echo & SONAR | Class 10 Physics Guaranteed Question | Applications of Sound

In this Class 10 Physics video, we explore the practical applications of the Reflection of Sound: Echo and SONAR. These topics are frequently asked in Board Exams, often as 3-mark conceptual questions or numericals. We explain the working principle of SONAR (Sound Navigation And Ranging) and how it is used to measure the depth of the ocean. 📝 Topics Covered: Quick revision of Echo. SONAR: Full form and Definition. How SONAR works (Transmitter & Detector). Calculation of Ocean Depth using Ultrasound (2d=v×t). Why Ultrasound is used instead of ordinary sound? Important Board Exam Questions on SONAR. 🎓 Exam Importance: "Explain the working of SONAR" is a very common theory question. Numericals based on "ship and seabed" are "Guaranteed Questions." Found this helpful? Hit LIKE and SUBSCRIBE for more Physics content! [00:33] - What is Sound? (Definition & Energy form) [01:01] - Difference between Sound and Light (Mechanical vs. Electromagnetic waves) [03:38] - Longitudinal vs. Transverse Waves [06:54] - Speed of Sound vs. Speed of Light [07:38] - Reflection of Sound (Introduction to Echo) [08:12] - Conditions for Hearing an Echo (0.1s time gap) [10:02] - Minimum Distance Calculation for Echo (17 meters) [12:34] - Numerical Problem 1: Calculating Time for an Echo [14:04] - Numerical Problem 2: Complex Echo Scenario (Between two hills) [18:13] - Numerical Problem 3: Finding Distance using Echo [20:44] - Applications of Sound: What is SONAR? [22:10] - Ultrasound & Infrasound (How animals like Bats & Dolphins use it) #SONAR #Echo #Class10Physics #SoundChapter #ICSEPhysics #CBSEClass9 #PhysicsNumericals #BoardExams #boards2026 #sound #class10 #class9